Question 152627
{{{5x^3-30x^2+45x=5x(x^2-6x+9)}}}
{{{5x^3-30x^2+45x=5x(x-3)^2}}}
{{{5x^3-30x^2+45x=5x(x-3)^2=0}}}
First zero:
{{{5x=0}}}
{{{x=0}}}
Second and third zero:
{{{(x-3)=0}}}
{{{x=3}}} 
{{{ graph( 300, 300, -10, 10, -20, 20, 5x^3-30x^2+45x) }}}